1importsqlite3#导入数据库相关的包23#连接到sqlite3数据库,数据库的名称是 test_bank.db ,如果该数据库不存在,则会自动创建4conn = sqlite3.connect('test_bank.db')5#创建一个cursor6cursor =conn.cursor()7#删除test_bank中的exam表格,如果不存在则会报错,所以本地如果没有test_bank.db数据库则需要注释...
import pyodbc # creating a new db to load Iris sample in new_db_name = "irissql" connection_string = "Driver=SQL Server;Server=localhost;Database={0};Trusted_Connection=Yes;" # you can also swap Trusted_Connection for UID={your username};PWD={your password} cnxn = pyodbc.connect(...
A singleton is a class with only one instance. There are several singletons in Python that you use frequently, including None, True, and False. The fact that None is a singleton allows you to compare for None using the is keyword, like you did when creating decorators with optional argumen...
In this series of tutorials we have covered Python 3.2 and in detail. While creating this, we have take care that learners can master the basics of Python. Here is a list of features we have included in all of the chapters : 1. We have started from beginning i.e. from installation, ...
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Congratulations. You're all set up to create and run Python programs! Now let's try creating a Hello World app with two of the most popular Python web frameworks: Flask and Django. Hello World tutorial for Flask Flaskis a web application framework for Python. The Flask documentation offers ...
The most common type of socket applications are client-server applications, where one side acts as the server and waits for connections from clients. This is the type of application that you’ll be creating in this tutorial. More specifically, you’ll focus on the socket API for Internet sock...
生成试题库以及界面代码: 注意: 要使代码运行成功,需要先看上一篇文章python生成数据库(python generate database)先生成 test_bank.db 数据库才可以运行成功 1importtkinter#Tkinter模块是python的标准Tk GUI工具包的接口2#from tkinter import *3#from tkinter.messagebox import *4fromtkinterimportmessagebox5importsq...
For example, import vertica_python import logging ## Example 1: write DEBUG level logs to './vertica_python.log' conn_info = {'host': '127.0.0.1', 'port': 5433, 'user': 'some_user', 'password': 'some_password', 'database': 'a_database', 'log_level': logging.DEBUG} with ...
Step 1: Connect to an Existing Database or Create a New One Start by creating a database for your app or connecting to an existing one: importsqlite3 conn = sqlite3.connect('database.db') cursor = conn.cursor() # your app's code goes here ...